Transition strip corner structure



FIG. 1 is a front isometric view of an ornamental design for a transition strip corner structure configured to perpendicularly align and cover the ends of two transition strips on a base surface;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a right side elevation view thereof; and,

FIG. 8 is a left side elevation view thereof. 

CLAIM The ornamental design for a transition strip corner structure, as shown and described. 